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Techniques to harness such energy are yet to be developed.

A:convert
B:utilize
C:store
D:receive

参考答案

参考解析
解析:本句意思:目前还没有利用这种能量的技术。convert的意思为“转变,使改变信仰”;uti- lize的意思为“利用”;store作动词的意思为“储存”;receive的意思为“收到”。harness的意思为 “利用,治理”,和utilize的意思接近。
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